@misc{indiciae08af2a60ca8f,
  title = {The praecordial honk.},
  author = {P Rizzon and G Biasco and G Maselli-Campagna},
  year = {1971},
  doi = {10.1136/hrt.33.5.707},
  url = {https://pubmed.ncbi.nlm.nih.gov/5115014/},
  note = {Source identifier: 5115014}
}